If you’ve recently encountered beachballs or freezes after installing Yosemite, your drive may be experiencing a common ailment known as directory tree munging. Surprisingly, it’s very much a thing that …
DiskWarrior, the venerable utility from Alsoft, is my go-to utility to preventative maintenance on the Mac. Over time, the Mac’s directory tree can get munged (“Invalid node tree”, anyone?), which …